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Completed Phase 2 Interventional Results available

A Trial of the Safety and Immunogenicity of the COVID-19 Vaccine (mRNA-1273) in Participants With Hematologic Malignancies and Various Regimens of Immunosuppression, and in Participants With Solid Tumors on PD1/PDL1 Inhibitor Therapy

ClinicalTrials.gov ID: NCT04847050

Public ClinicalTrials.gov record NCT04847050. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 11:23 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Trial of the Safety and Immunogenicity of the COVID-19 Vaccine (mRNA-1273) in Participants With Hematologic Malignancies and Various Regimens of Immunosuppression, and in Participants With Solid Tumors on PD1/PDL1 Inhibitor Therapy, Including Booster Doses of Vaccine

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Background: Coronavirus disease (COVID-19) is a viral infection. It has spread rapidly across the globe. It has overwhelmed health systems. Researchers are concerned that it may undo years of progress in the reduction of cancer-specific death. They want to test a vaccine that might protect people with cancer from COVID-19. Objective: To test the safety and efficacy of a vaccine using messenger ribonucleic acid (mRNA)-1273 that may protect people with cancer from COVID-19. Eligibility: Adults ages 18 and older who have a solid tumor or blood cancer and who may benefit from a vaccine that might prepare their immune system for fighting and preventing infection from COVID-19. Patients with solid tumors must be receiving treatment with an immunotherapy agent. Design: Participants will be screened with a medical history, medicine review, and physical exam. They will have blood tests. They will have a pregnancy test if needed. Participants will get 2 doses of the mRNA-1273 vaccine if they have not been vaccinated already. It will be injected into a muscle in the arm on Days 1 and 29. They will be followed for 12 months after the second dose. Participants will have study visits at the Clinical Center on Days 1, 29, 36,57, 209, and 394. Some visits will last about 4-6 hours. Patients will be able to get up to 3 doses of mRNA-1273 as a booster on trial if they have already completed a primary series of a vaccine. Participants who have already received a booster dose of vaccine will be able to enroll to receive additional boosters. It will be injected into a muscle in the arm on Day 1. Participants will be followed for 12 months after their last booster injection. Participants who receive booster doses will have study visits at the Clinical Center on Days 1, 29, 57, 180 and 360. Participants will give blood and saliva samples for research. Participation will last about 16 months.

Study identification

NCT ID
NCT04847050
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
19 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 27, 2021
Primary completion
May 24, 2023
Completion
May 24, 2023
Last update posted
Aug 26, 2024

2021 – 2023

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
National Institutes of Health Clinical Center Bethesda Maryland 20892

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04847050, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 26, 2024 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04847050 live on ClinicalTrials.gov.

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